Ive never experienced this in one of my pups but Ive found this
hope it helps
http://www.bestfriendspetcare.com/do...ytraining9.cfm
Training Your Puppy to Control Submissive and Excitement Urination
Dogs often times urinate to show their submissive status. This habit is often present in insecure dogs or in dogs that lack. Rather than reprimanding your dog, which would only make matters worse, try teaching him new ways to show submission, such as making him sit, coming when called, rolling over, and so on. Make him practice these tricks and his urination problem should soon disappear.
Excitement urination, on the other hand, usually occurs when puppies have not yet developed proper bladder control. They may urinate every time they feel excited, most of the time without even noticing. When this happens, do not get upset or reprimand your puppy for urinating. If you do, then the problem can turn even worse because it will turn into submissive urination. To prevent this from happening, you should increase your puppy’s exposure to the event that makes him urinate. Do this as many times as possible in order to make it so common that it no longer excites your dog. As your puppy grows older or simply loses interest in the event, the problem will be eliminated.
and this one
Submissive Urination: Urinates When Anxious or Excited
by Sarah Wilson
http://www.mysmartpuppy.com/ask-us/a...ion-puppy.html
Submissive urination, as it's called, is the canine version of "You win, please don't hurt me." Prime times for this are when you, or anyone else, enters your home or if you scold the puppy. This has nothing to do with housebreaking. It is actually an extremely polite canine gesture of respect. Many pups will do this and, if you don't react to it, most will outgrow it.
Cause
Miscommunication! Your dog is just trying to be ultra-polite. Unfortunately, it is all too often interpreted by us humans as "I know exactly what I'm doing and I'm doing it to tick you off." Consequently, the owner punishes the dog. Causing the dog to think the owner did not understand his very clear signal of submission. Next time he tries harder to communicate by urinating sooner and more profusely. The owner seeing defiance punishes the dog more intensely.... and on and on we go.
Common Mistakes
People get annoyed and scold or spank the dog. Punishing or correcting a dog for submissively urinating is like throwing gas on a fire to put it out. The only way to solve this problem is to ignore it, train your dog using positive methods and wait. Over time, it will decrease. Slip once and show your displeasure and it will take you twice as long next time to get him dry.
If your dog has been intimidated in the past either by you or a previous owner, he is peeing in an effort to avoid punishment he thinks may be coming. This type of submissive urination is usually person-linked, many times to men in general or to a male in particular. All yelling at or physical corrections must stop - from this moment on.
Some dogs do this with one or two people who, while never harming the puppy, the puppy sees as leader types and then pees as a sign of respect. This generally passes.
Further Advice
If you know your dog's trigger situations then ignore your dog when you are in them. And we do mean ignore - no eye contact, speaking to, or touching. Just go about your day as if nothing is happening, and hopefully it won't be.
If your dog is a doorway puddler, instruct guests to ignore your dog for the first ten minutes or so they are at your house. Then allow the dog to approach you, while you are squatting and turned away from dog. Do not bend over or reach toward the dog as this will cause the floodgates will open.
It is hard to be fearful and anticipatory at the same moment so distracting the dog with a biscuit when you enter the house can avoid mishaps. Keep a stash by the door and when you enter toss one to your dog. Ignore the dog and continue. Over time, your dog will come to look forward to you coming home, instead of being anxious about it.
And, lastly, training which focuses on praise and enthusiasm, builds canine confidence. If your dog knows exactly what you want, exactly how to please you and exactly what wonderful things will happen when he does, he will have no doubts. A dog with no doubt is a dry dog.